IRIG标准颤振信号的在线监测方法研究

On-line Monitoring for IRIG Standard Chatter Singal

摘要:

颤振试飞是飞行试验中的一项重要课题;颤振参数的实时在线显示为颤振参数在线校准的最重要环节,基于此提出了一种基于IRIG标准的颤振信号的在线实时监测方法;首先对飞行数据的IRIG记录标准进行了研究,并介绍了其中颤振参数的记录格式;然后对BCB界面化设计和Matlab数据分析的混合编程进行了研究,利用混合编程和多线程的组合方式,完成了网络数据提取、数据包获取、通道数据获取与显示和FFT变换与显示；通过对标准信号的在线实时监测,验证了软件的正确性和可行性,满足颤振参数校准的需求,最终实现了对颤振信号的在线监测。

Abstract:

The flutter test is an important topic in flight test. The real-time online display of the flutter parameters is the most important part of the on-line calibration of the flutter parameters.Based on this.an on-line real-time monitoring method based on IRIG standard is proposed.Firstly,the standard of IRIG recording of flight data is studied,and the recording format of the flutter parameters is introduced. Then the BCB interface design and Matlab data analysis of mixed programming are studied,using the combination of programming and multi thread combination,completed the network data extraction,data packet capture,channel data acquisition display and display FFT. The accuracy and feasibility of the software are verified by on-line real-time monitoring of the standard signal,and the requirement of the flutter parameters calibration is met.